<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="./node_modules/vue/dist/vue.js"></script>
    <script>

        window.onload = function () {

            var eea = new Vue({
                el: '#eea',
                data: {

                },
                methods: {
                    show: function (tag) {
                        alert(tag)
                    }
                },
            })

        }
    </script>
</head>

<body>

    <div id="eea">
        <button type="button" v-on:click="show(111)">touchme</button>
    </div>
</body>

</html>